Add have_cacheable_headers matcher for responses (#31727)

spec/controllers/activitypub/collections_controller_spec.rb

@@ -25,10 +25,10 @@ RSpec.describe ActivityPub::CollectionsController do
       context 'without signature' do
         let(:remote_account) { nil }
 
-        it_behaves_like 'cacheable response'
-
         it 'returns http success and correct media type and correct items' do
-          expect(response).to have_http_status(200)
+          expect(response)
+            .to have_http_status(200)
+            .and have_cacheable_headers
           expect(response.media_type).to eq 'application/activity+json'
 
           expect(body_as_json[:orderedItems])
@@ -64,10 +64,11 @@ RSpec.describe ActivityPub::CollectionsController do
         let(:remote_account) { Fabricate(:account, domain: 'example.com') }
 
         context 'when getting a featured resource' do
-          it_behaves_like 'cacheable response'
-
           it 'returns http success and correct media type and expected items' do
-            expect(response).to have_http_status(200)
+            expect(response)
+              .to have_http_status(200)
+              .and have_cacheable_headers
+
             expect(response.media_type).to eq 'application/activity+json'
 
             expect(body_as_json[:orderedItems])

spec/controllers/activitypub/outboxes_controller_spec.rb

@@ -25,10 +25,11 @@ RSpec.describe ActivityPub::OutboxesController do
       context 'with page not requested' do
         let(:page) { nil }
 
-        it_behaves_like 'cacheable response'
-
         it 'returns http success and correct media type and headers and items count' do
-          expect(response).to have_http_status(200)
+          expect(response)
+            .to have_http_status(200)
+            .and have_cacheable_headers
+
           expect(response.media_type).to eq 'application/activity+json'
           expect(response.headers['Vary']).to be_nil
           expect(body[:totalItems]).to eq 4
@@ -59,10 +60,11 @@ RSpec.describe ActivityPub::OutboxesController do
       context 'with page requested' do
         let(:page) { 'true' }
 
-        it_behaves_like 'cacheable response'
-
         it 'returns http success and correct media type and vary header and items' do
-          expect(response).to have_http_status(200)
+          expect(response)
+            .to have_http_status(200)
+            .and have_cacheable_headers
+
           expect(response.media_type).to eq 'application/activity+json'
           expect(response.headers['Vary']).to include 'Signature'
 

spec/controllers/activitypub/replies_controller_spec.rb

@@ -68,10 +68,11 @@ RSpec.describe ActivityPub::RepliesController do
       let(:parent_visibility) { :public }
       let(:page_json) { body_as_json[:first] }
 
-      it_behaves_like 'cacheable response'
-
       it 'returns http success and correct media type' do
-        expect(response).to have_http_status(200)
+        expect(response)
+          .to have_http_status(200)
+          .and have_cacheable_headers
+
         expect(response.media_type).to eq 'application/activity+json'
       end